Question
G and H together take 18 days to complete a task. G
alone takes 30 days. How long will H take to finish it alone?Solution
Let the total work be 90 units. {LCM (18 and 30)}
So, combined efficiency of 'G' and 'H' = 90 ÷ 18 = 5 units/day
Efficiency of 'G' = 90 ÷ 30 = 3 units/day
So, efficiency of 'H' = 5 - 3 = 2 units/day
So, time taken by 'H' to do the work alone = 90 ÷ 2 = 45 days
In the questions given below there are three statements followed by three conclusions I, II and III. You have to take the three given statements to be ...
Statements:Some students are Rich.
     No Rich is a teacher.
Conclusions:I. Some teacher are not Rich.
  II. Some Rich...
In the question below there are three statements followed by two conclusions I and II. You have to take the three given statements to be true even if t...
In the question below some statements are given followed by three conclusions I, II, and III. You have to take the given statements to be true even if...
Statements:
Some copy are not book.
Only a few book are paper.
Only paper are notebook.
Conclusions:
Some copy may...
Statements:
Some creams are butters.
Some butters are cakes.
No cake is a bread.
Conclusion:
I. Somecakes may not...
In the question below some statements are given followed by three conclusions I, II, and III. You have to take the given statements to be true even if ...
Statement:
Only Cricket is Kabbadi
No Kabbadi is Volleyball           Â
Only a few Football are Vollyball...
Statements: Some printers are carbons.
No carbon is a graphite.
No diamond is printer.
Conclusions:I. All printers are diamond. <...
Statements:Â Â Â Â Â Â All pink are red.
                               All red are orange.
Conclusions: ...
Relevant for Exams:
